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1. any coloring matter of the body.
2. a stain or dyestuff.
3. a paintlike medicinal preparation applied to the skin. adj., adj pig´mentary.
bile pigment any of the coloring matters of the bile, derived from heme, including bilirubin, biliverdin, and several others.
blood pigment (hematogenous pigment) any of the pigments derived from hemoglobin, such as hematoidin, hematoporphyrin, hemofuscin, and methemoglobin.
lipid pigment any of various pigments having lipid characteristics, some of which also contain protein or iron, the most important one being lipofuscin.
respiratory p's substances, e.g., hemoglobin, myoglobin, or cytochromes, which take part in the oxidative processes of the animal body.
retinal p's the photopigments in retinal rods and cones that respond to certain colors of light and initiate the process of vision.
blood pigmentA nonspecific term for any pigmented substance in the peripheral circulation, widely understood to signify those proteins capable of acting as oxygen transporters—e.g., in humans, haemoglobin, respiratory pigments, hematogenous pigments, as well as biliary pigments.
A pigment in blood (hemoglobin) or a derivative of it (hematin, hemin, methemoglobin, hemosiderin).
See also: pigment